Volvo has now announced powertrain details that include exclusively only four-cylinder engines. No big V8 or even six cylinder units.

The top of the range Twin Engine’ will carry the ‘T8’ badge and is a plug-in electric hybrid, using a 2.0-litre four-cylinder supercharged and turbocharged Drive-E petrol engine that powers the front wheels and an 80bhp (60 kW) electric motor that drives the rear wheels, for a combined power output of 400bhp and 640Nm of torque.

The supercharger is for the bottom end of the power range to give the engine a big, naturally-aspirated feel, while the turbocharger kicks in later to offer extra boost at higher rpm. The electric motor on the rear wheels provides immediate torque.

The range from a purely EV mode is around 25 miles.

Other two engines include a D5 twin turbo diesel engine with 225bhp and 470 Nm of torque, delivering around 47mpg, plus the D4 turbo diesel engine with 190bhp and 400 Nm delivering a fuel economy of 56mpg.

The all-new seven seater XC90 will debut at the Paris Motor Show in early October.